[bug #63568] Simple syntax-rules macro fails.

[Arthur A. Gleckler]

URL:
  <https://savannah.gnu.org/bugs/?63568>

                 Summary: Simple syntax-rules macro fails.
                 Project: MIT/GNU Scheme
               Submitter: aag
               Submitted: Sat 24 Dec 2022 10:34:51 AM PST
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                Keywords: 


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Follow-up Comments:


-------------------------------------------------------
Date: Sat 24 Dec 2022 10:34:51 AM PST By: Arthur A. Gleckler <aag>

(define-syntax define-foo
  (syntax-rules ()
    ((define-foo ((variable value ...)))
     (begin
       (add-foo! '(variable value))
       ...))))

;Mismatched segment depth in template: (variable)
;To continue, call RESTART with an option number:
; (RESTART 1) => Return to read-eval-print level 1.

2 error> 


I'm not sure what "segment depth" means, but I'm guessing that the problem is
that value is subject to an ellipsis, but variable is not.  But I didn't think
that it was a requirement that they be the same in that regard.

Chibi, Chicken, and Gauche Scheme all accept that definition.







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